% EEG_HIST - history for EEGLAB dataset.
%
% Usage:
%   >> EEGOUT = eeg_hist( EEGIN, command );
%
% Inputs:
%   EEGIN   - input dataset
%   command - [string] eeglab command
%
% Author: Arnaud Delorme, SCCN/INC/UCSD, Dec 2003
%
% See also: EEGH, EEGLAB

% Copyright (C) 2003 Arnaud Delorme, SCCN/INC/UCSD, arno@salk.edu
%
% This file is part of EEGLAB, see http://www.eeglab.org
% for the documentation and details.
%
% Redistribution and use in source and binary forms, with or without
% modification, are permitted provided that the following conditions are met:
%
% 1. Redistributions of source code must retain the above copyright notice,
% this list of conditions and the following disclaimer.
%
% 2. Redistributions in binary form must reproduce the above copyright notice,
% this list of conditions and the following disclaimer in the documentation
% and/or other materials provided with the distribution.
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
% THE POSSIBILITY OF SUCH DAMAGE.

function EEG = eeg_hist( EEG, command )

if nargin < 2
    help eeg_hist;
end

if ~isfield(EEG, 'history')
    EEG.history = '';
end

if ~isempty(command) &&  isempty(strfind(command, 'pop_loadset'))
    try
        EEG.history = [ EEG.history 10 command ];
    catch
        EEG.history = strvcat(EEG.history, command);
    end
end
